| 摘要 |
An audio player comprising a memory card (1), a reproduction circuit (2), a microcomputer (3), a DSP (4), and a headphone output terminal (7). The microcomputer (3) extracts bit rate information from acoustic data when reproducing acoustic data and feeds a frequency control signal according to the bit rate information to the DSP (4) every time the bit rate information is extracted. The DSP (4) can perform a predetermined signal processing at the frequency according to the frequency control signal fed from the microcomputer (3). Shortening of the battery life caused by wasteful power consumption can be suppressed thereby.
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